arch/sh/include/asm/smp.h

   1 #ifndef __ASM_SH_SMP_H
   2 #define __ASM_SH_SMP_H
   3
   4 #include <linux/bitops.h>
   5 #include <linux/cpumask.h>
   6
   7 #ifdef CONFIG_SMP
   8
   9 #include <linux/spinlock.h>
  10 #include <asm/atomic.h>
  11 #include <asm/current.h>
  12
  13 #define raw_smp_processor_id()  (current_thread_info()->cpu)
  14 #define hard_smp_processor_id() plat_smp_processor_id()
  15
  16 /* Map from cpu id to sequential logical cpu number. */
  17 extern int __cpu_number_map[NR_CPUS];
  18 #define cpu_number_map(cpu)  __cpu_number_map[cpu]
  19
  20 /* The reverse map from sequential logical cpu number to cpu id.  */
  21 extern int __cpu_logical_map[NR_CPUS];
  22 #define cpu_logical_map(cpu)  __cpu_logical_map[cpu]
  23
  24 enum {
  25         SMP_MSG_FUNCTION,
  26         SMP_MSG_RESCHEDULE,
  27         SMP_MSG_FUNCTION_SINGLE,
  28         SMP_MSG_TIMER,
  29
  30         SMP_MSG_NR,     /* must be last */
  31 };
  32
  33 void smp_message_recv(unsigned int msg);
  34 void smp_timer_broadcast(const struct cpumask *mask);
  35
  36 void local_timer_interrupt(void);
  37 void local_timer_setup(unsigned int cpu);
  38
  39 void plat_smp_setup(void);
  40 void plat_prepare_cpus(unsigned int max_cpus);
  41 int plat_smp_processor_id(void);
  42 void plat_start_cpu(unsigned int cpu, unsigned long entry_point);
  43 void plat_send_ipi(unsigned int cpu, unsigned int message);
  44
  45 void arch_send_call_function_single_ipi(int cpu);
  46 void arch_send_call_function_ipi(cpumask_t mask);
  47
  48 #else
  49
  50 #define hard_smp_processor_id() (0)
  51
  52 #endif /* CONFIG_SMP */
  53
  54 #endif /* __ASM_SH_SMP_H */